What is the eos

I looked in the stickies and it compared it to the vibe. Is the eos just an over glorified ion? I'm trying to find parts for it and they keep coming up with ion, etc..... When trying to find boards bolts and triggers and things of that nature. I picked it up for my brother so I could have something close to my shockers til he could get the feel of tourney ball and I picked it up really cheap. Anyone have any advice on this and as far as upgrades would it take ion stuff or do I have to hunt for the things I need